diff options
Diffstat (limited to 'misc/sys/cdefs.h')
| -rw-r--r-- | misc/sys/cdefs.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h index dd06a6653a..9960239688 100644 --- a/misc/sys/cdefs.h +++ b/misc/sys/cdefs.h @@ -141,6 +141,15 @@ # define __attribute_pure__ /* Ignore */ #endif +/* At some point during the gcc 2.8 development the `format_arg' attribute + for functions was introduced. We don't want to use it unconditionally + (although this would be possible) since it generates warnings. */ +#if __GNUC_PREREQ (2,8) +# define __attribute_format_arg__(x) __attribute__ ((__format_arg__ (x))) +#else +# define __attribute_format_arg__(x) /* Ignore */ +#endif + /* It is possible to compile containing GCC extensions even if GCC is run in pedantic mode if the uses are carefully marked using the `__extension__' keyword. But this is not generally available before |